Beneficial Nematodes

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Microscopic and relentless, beneficial nematodes hunt soil pests where sprays can't reach. Buy beneficial nematodes matched to fungus gnats, grubs, and borers — safe for people, pets, and plants.

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Grower guide More information about Beneficial Nematodes

Microscopic, relentless, and completely invisible — beneficial nematodes hunt down soil pests in the one place sprays can't reach: the root zone. Buy the species matched to your pest and let them work.

Beneficial nematodes are tiny roundworms that seek out and kill pest larvae in the media, then move on to the next. Choosing the right beneficial nematodes for sale targets fungus gnats, grubs, shore flies, borers, and pupating thrips — residue-free and exempt from most pesticide regulations.

Why choose beneficial nematodes

Nematodes reach larvae deep in the media where drenches and sprays fail. They're safe for people, pets, plants, and earthworms, leave no residue, and slot cleanly into organic and IPM programs.

How to apply

Mix with water and drench or spray onto moist media in the cooler part of the day, then keep the root zone damp so nematodes can move and infect. Reapply preventatively through the crop for ongoing protection, and match the species to your target pest.

What's in this collection

  • NEMAforce SF (Steinernema feltiae) — fungus gnats, shore flies, and thrips pupae.
  • NEMAforce SC (Steinernema carpocapsae) — caterpillars, borers, and surface-active larvae.
  • NEMAforce HB (Heterorhabditis bacteriophora) — root-feeding grubs and weevil larvae.

Frequently asked questions

What do beneficial nematodes kill?

Soil-dwelling pest larvae — fungus gnats, grubs, root weevils, shore flies, borers, and pupating thrips — depending on the species used.

How do you apply beneficial nematodes?

Dilute in water and drench moist media in low light, then keep it damp; reapply as conditions and pest pressure require.

Are beneficial nematodes safe?

Yes — they're harmless to people, pets, plants, bees, and earthworms, and target only pest larvae.

How long do beneficial nematodes last?

Use them fresh and keep the media moist after applying; they persist and recycle in the soil as long as host larvae and moisture are present.

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